Domestic violence kills more people than war.
A report from the Copenhagen Consensus Centre released this week found it costs the world $8trillion a year.
"For every civil war battlefield death, roughly nine people are killed in inter-personal disputes," Anke Hoeffler of Oxford University and James Fearon of Stanford University wrote in the report.
In England and Wales two women are killed every week by a current or former partner: that equates to 104 deaths every year.
Looking at recent mortality statistics for England and Wales, released by the Office for National Statistics, that means in 2011 domestic violence likely killed the same number of pedestrians in transport accidents.
It also killed more women than some of these well-known causes or death or illnesses:
Pedal cyclists injured in transport accidents
40 women died
94 women died
60 women died
53 women died
Sudden infant death syndrome
46 women died
Motorcycle rider injured in transport accident
14 women died
Accidental drowning and submersion
38 women died
Exposure to smoke, fire and flames
102 women died
Comparing an estimate of the number of deaths with registered causes of deaths is of course problematic, but this article is about giving an idea of just how common and deadly domestic violence is in Britain. To read more about the statistics, click here.